meetings - Space Flight Mechanics Committee

constraints associated with a proposed mission concept are specified.
16:15 AAS A Trajectory Optimization Strategy for a Multiple Rendezvous Mission with
13-497 Trojan Asteroids
Lucas Bremond, The University of Tokyo / JAXA; Ryu Funase, Japan Aerospace
Exploration Agency; Jun'ichiro Kawaguchi, Japan Aerospace Exploration Agency
The objective of this research is to study the extended mission trajectory of a spacecraft in
the vicinity of L4 Trojan Asteroids. We consider a spacecraft that has already achieved a
rendezvous with a Trojan Asteroid, and we would like to know which asteroids the
spacecraft should visit next, considering the given mission constraints. This article will
outline the used methodology and provide associated results.
16:35 AAS Passive sorting of asteroid material using Solar Radiation Pressure
13-484 Daniel Garcia Yarnoz, Advanced Space Concepts Laboratory, University of
Strathclyde; Joan Pau Sanchez Cuartielles, Advanced Space Concepts Laboratory,
University of Strathclyde; Colin McInnes, Advanced Space Concepts Laboratory,
University of Strathclyde
Understanding dust dynamics in asteroid environments is key for future science missions to
asteroids and, in the long-term, for asteroid exploitation. This paper proposes a novel way
of manipulating asteroid material by means of solar radiation pressure (SRP). We envisage
a method for passively sorting material as a function of its grain size where SRP is used as a
passive in-situ ‘mass spectrometer’. The analysis shows that the distance between re-impact
points for different particle sizes allows an effective sorting of regolith material. This has
immediate applications for sample return, and in-situ resource utilisation to separate
23 rd AAS / AIAA Space Flight Mechanics Meeting Page 37